I am going to build some acoustic panels for my room. I am wondering if I should go with 2" or 4". I am using Boston Acoustics VR30s for the fronts and smaller Boston speakers for the center and rears. I will probably never get a sub because of roommates and such. The Vr30s are floor standing towers with I think a 6.5" woofer (could be wrong though). I dont remember the freq range on them but would 2" be fine? Would 4" make any noticeable difference? I will be putting the panels on side(1st reflection) and rear since couch is only a foot away from rear wall. Also I am planning on using the Roxul mineral wool from ATS, would that be a wise choice? Any thoughts are much apprec. -Thanks, Keith

Read the sticky thread on acoustics - answers to all your questions are in that thread.

Yes, it is a big thread but you can scan through it to get the posts you are intested in.

Best of luck.

The thicker you go, the deeper the frequencies that can be absorbed. Based on what I've ready, 2" is probably fine on the first reflection pionts, but you would do better with 3" or thicker in the front of the room.

CJ

I am going to build some acoustic panels for my room. I am wondering if I should go with 2" or 4". I am using Boston Acoustics VR30s for the fronts and smaller Boston speakers for the center and rears. I will probably never get a sub because of roommates and such. The Vr30s are floor standing towers with I think a 6.5" woofer (could be wrong though). I dont remember the freq range on them but would 2" be fine? Would 4" make any noticeable difference? I will be putting the panels on side(1st reflection) and rear since couch is only a foot away from rear wall. Also I am planning on using the Roxul mineral wool from ATS, would that be a wise choice? Any thoughts are much apprec. -Thanks, Keith

It depends completely on the size of the room. Smaller rooms can benefit from using 4" panels and thicker...no 2" panels at all. The reason is that a properly built 4" panel will do everything to 2" panel will do plus add low end control...they're true broad band panels. If it's a larger room then 2" panels become more important.

Frank

I used 4" on my screen wall and 2" everywhere else.

It depends completely on the size of the room. Smaller rooms can benefit from using 4" panels and thicker...no 2" panels at all. The reason is that a properly built 4" panel will do everything to 2" panel will do plus add low end control...they're true broad band panels. If it's a larger room then 2" panels become more important.

Frank

What would you qualify as a small room? I know that there is probably no specific number, but a general idea would be very helpful.

Thanks,
CJ

A small room is maybe 25 by 15 and smaller, but even larger rooms you'll find in most homes are considered "small" by acousticians. As compared to, say, an auditorium or gymnasium.

--Ethan

One rather clever definition of a small room was:

"if you move 2 feet, and the sound changes, it's a small room"

One rather clever definition of a small room was:

"if you move 2 feet, and the sound changes, it's a small room"

:D:D:D

Clever, and very true.

Frank

Thanks, Frank, Ethan and Dennis.

CJ